Home / 188,265.84-259,805.52-103,381.20

Finding the Fourth Proportional to 188,265.84, 259,805.52 and 103,381.20

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Solution

The fourth proportional to 188,265.84, 259,805.52 and 103,381.20 is: 142,665.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    188,265.84 : 259,805.52 = 103,381.20 : x
  2. Step 2: Convert to fraction form
    188,265.84/259,805.52 = 103,381.20/x
  3. Step 3: Cross multiply
    188,265.84x = 259,805.52 × 103,381.20
  4. Step 4: Simplify right side
    188,265.84x = 26,859,006,424.22
  5. Step 5: Solve for x
    x = 26,859,006,424.22/188,265.84
  6. Step 6: Final answer
    x = 142,665.32

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.